Lighting-fixture.



E. F. GUTH.

LIGHTING FIXTURE. APPLICATION FILED APR.4. 191s.

L283J20 Pateated Oct. 29, 1918..

FINE

IIIIIIIIII WITNESS. IJVVEJVTOR.

ATTORN E Y UNITED STATES PATENT @FFICE.

EDWIN F. GUTH, OF ST. LOUIS, MISSOURL'EASSIGNOR T0 LUMINOUS UNITCOMPANY, OF

ST. LOUIS, MISSOURI, A CORPORATION or MISSOURI.

LIGHTING-FIXTURE.

Specification of Letters Patent.

Patented Oct. 29, 19918.

Application filed April 4, 1918. Serial No. 226,728.

To all whom it may concern:

Be it known that I, EDWIN F. GUTH, a citizen of the United States ofAmerica, residing at the city of St. Louis, State of Missouri, UnitedStates of America, have invented a certain'new and useful Lighting-Fixture, of which the following is such a full, clear, and exactdescription as will enable any one skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, forming part of this specification.

The object of my invention is to provide a lighting fixture particularlysuitable for factory and general industrial uses, which will be durableand elficient and at the same time be of simple and comparativelyinexpensive construction, and capable of easy installation anddisassembly.

In the accompanying drawings, Figure 1 is a side view partly inelevation and partly in section of a li hting fixture embodying myinvention; an Fig. 2 illustrates details of construction.

The fixture comprising a reflector 1, preferably substantially flat, anda light shield 2 preferably in the form of a frustum of a cone. A lamp 3is carried in the lamp receptacle or socket 4 and embracing this socketis a clamp 5, which is provided with depending arms 6 forming a supportfor the reflector and the shield. These arms have reduced ends as shownand pass through openings in the reflector, which substantially conformin size and shape to said reduced ends of the arms. The shield issupported by hangers 7 which may be of mm and which pass throughopenings in the'ends of the arms 6 and form keys to hold the reflectorin position on the arms. The lower ends of the hangers 7 are hooked intosupporting loops 8 attached to the outer surface of the shield 2. Twodifferently positioned sets of these loops are provided, wherebythe'height of the shield, with respect to the reflector or t adjusted.

The clamp 5 is sufiiciently resilient to permit it to be passed over theusual lower e lamp, may be.

shoulder 9 of the standard lamp socket 4, and the installation of thefixture is therefore exceedingly simple, in that it may be readilyattached to any existing drop light or vertically positioned socket.

The reflector 1 and the shleld 2 are preferably metal stampings, andtherefore, not subject to breakage. The lower surface of the reflectorand its flange 10 and both the inner and the outer surfaces of theshield 2 are coated with white enamel to form good reflecting surfaces.The shield has an opening at the top and at the bottom, and its positionand conformation is such, with reference to the lamp filament, that raysof light therefrom which are inclined at less than approximately fromthe perpendicular may pass downward without obstruction. Other rayswhich strike the interior of the shield are reflected downwardly orupwardly depending upon their angles of incidence, and rays of lightpassing upward are reflected downwardly by the re- Hector 1, some ofthem being re-reflected by the outer surface of the shield 2.

Since a person seldom has occasion to look upward at an angle of morethan 30 or 40 degrees, my fixture sufficiently shields the direct raysof the lamp and efiiciently handles those direct rays which areintercepted by the shield or the reflector and directs them to the areabeneath the fixture where the light is desired.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent'of the United States is:

In a lighting fixture, the combination of a reflector, a light shieldbeneath the reflector, a lamp receptacle, a clamp embracing the lampreceptacle and provided with reflector supporting members passingthrough separate openings through the reflector, and separate shieldsupporting members connected with the reflector supporting members andforming keys to hold the reflector in position thereon.

In testimony whereof, I have hereunto set my hand and affixed my-seal.

EDWIN F. GUTH. [13. 8.]

